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tiny-mole [99]
3 years ago
12

Given: AB=BC,AM=MC BM ⊥AC , EF⊥BC Prove: EC/AB = FC/MA

Mathematics
1 answer:
kenny6666 [7]3 years ago
5 0

Answer:

<em>9</em><em>0</em><em> </em><em>degree</em><em> </em><em>EFC</em><em>. </em><em>and</em><em>. </em><em>BMC</em>

<em>across</em><em> </em><em>fc</em><em>/</em><em>ma</em><em> </em>

<em>across</em><em> </em><em>ec</em><em>/</em><em>ab</em>

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OverLord2011 [107]

Answer:

147 degrees

Step-by-step explanation:

all the angles of a triangle add up to 180 degrees. so, you must perform the operation 180-(83+64) which equals 33. this is the angle supplementary to angle 1. to find angle 1, you must subtract 180 and 33 since supplementary angles add up to 180 degrees. this is equal to 147 degrees.

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3 years ago
A certain animated movie earned $1.1*10^9 in revenues at the box office. The movie lasts 9.1*10^1 minutes. How much revenue was
Vadim26 [7]

Answer:

$12,087,912.1

Step-by-step explanation:

1.1*10^9  is in scientific notation, to get this into normal number, we take the decimal point and move it "9" times to the right [whatever power of 10 we have, we move to right (if positive).] Then we fillup the rest with zeros.

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1.1*10^9=1,100,000,000

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We do similar process for time:

9.1*10^1=91

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\frac{1,100,000,000}{91}=12,087,912.1

The revenue earned per minute is  $12,087,912.1

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Step-by-step explanation:

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